JP2002276218A - Locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device facilitating the adjustment of the mounting position of a sensor, magnet or the like, never causing a slippage after mounting, and ensuring a locking confirmation by avoiding a conventional problem for outputting a locking signal in a miss locked state. SOLUTION: This locking device 21 to be mounted on a sliding window 22 formed of two window glasses 22a and 22b comprises a crescent lock body part 31 having a rotary lock claw 39, and an engagement member 32 having a hook part 45 to be engaged with the lock claw 39. A first sensor (reed switch 41) for detecting the engagement position with the engagement member 32 and a second sensor for detecting the position of the hook part 45 in the rotation of the lock claw 39 are arranged within the crescent lock body part 31. When both the first sensor and second sensor output detection signals, a locking signal is outputted to a receiving device 61.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for an opening / closing member such as a sliding window, and more particularly to a locking device suitable for confirming a locked state of the opening / closing member.

[0002]

2. Description of the Related Art Conventionally, a locking device 1 as shown in FIG. 8 has been known as a device for checking a locked state of a sliding window or a door (Japanese Patent Laid-Open No. 6-309572). In this locking device 1, a magnet 5 is provided on a crescent lock 4 attached to an inner window frame 2, while a wireless transmitter 6 having a sensor for detecting the magnet 5 is provided on an outer window frame 3. The lock state of the window is transmitted to a wireless receiver 7 at a remote location to check the lock state.

[0003] The magnet 5 is bonded to an operation lever 9 of a rotary lock claw 8 provided on the inner window frame 2.
One wireless transmitter 6 is disposed on the side edge 3a of the outer window frame 3, and faces the magnet 5 when the lock 8 rotates to the locking position as shown in FIG.
The sensor built into the wireless transmitter 6 is
Rotates and engages with the hook 10 to detect the magnet 5, and the detection signal is transmitted to the wireless receiver 7. As described above, the locking device 1 determines whether to lock or unlock by detecting whether the operating lever 9 of the crescent lock 4 has approached or separated from the sensor built in the wireless transmitter 6, and determined whether to lock or unlock. The final confirmation is made on the 7 side. In addition, as a sensor built in the wireless transmitter 6, a magnetically operated proximity sensor or the like is used.

[0004]

However, in the conventional locking device 1 described above, a sensor built in the wireless transmitter 6 mounted on the outer window frame 3 and a sensor mounted on the inner window frame 2 are provided. The locking signal is output when the position of the crescent lock 4 and the magnet 5 coincide with each other. However, since the wireless transmitter 6 is provided separately from the hook 10, the lock claw 8 is The wireless transmitter 6 must be mounted at an appropriate position in accordance with the position of the magnet 5 when the wireless transmitter 6 is engaged with the bracket 10, and adjustment of the mounting position of the wireless transmitter 6 has been a troublesome operation.

Since the wireless transmitter 6 is mounted so as to protrude from the side edge portion 3a of the outer window frame 3, the wireless transmitter 6 is easily caught by the hand when the window is opened and closed, and a sensor is provided. Could be displaced or damaged. Then, such a shift in the mounting position of the wireless transmitter 6 may cause a problem that a lock signal is output even in a so-called empty lock state.

Further, in the above-mentioned locking device 1, the magnet 5 and the wireless transmitter 6 are exposed to the outside, so that the appearance is poor.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a conventional locking system which can easily adjust the mounting position of a sensor, a magnet, or the like, does not cause displacement after mounting, and outputs a locking signal in an empty locking state. It is an object of the present invention to provide a locking device that avoids the problem and can reliably perform locking confirmation, and has a good appearance.

[0008]

According to a first aspect of the present invention, there is provided a locking device for an opening / closing body for opening and closing an opening, the crescent locking device having a rotary locking claw. A first sensor for detecting an engagement position of the crescent lock main body with the engagement member, the first sensor including an engagement member having a hook portion that engages with the lock claw; and And a second sensor for detecting the hook position.

According to the present invention, the closed state of the opening / closing body can be confirmed by providing the first sensor for detecting the engaging position with the engaging member in the crescent lock main body. Further, by providing the second sensor for detecting the hook position when the lock claw is rotated, it is possible to confirm that the lock claw is at the lock position. As described above, the final lock confirmation is performed by two independent types of sensors,
Lock detection and confirmation can be performed more reliably. Further, since the first sensor and the second sensor are provided in the crescent lock main body, the entire device can be made compact, and there is no deviation in the detection position between the individual sensors.

According to a second aspect of the present invention, in the locking device according to the first aspect, the opening and closing body is constituted by two sliding windows, and a crescent lock main body is attached to one of the opening and closing bodies.
An engaging member is attached to the other opening / closing body.

According to a third aspect of the present invention, in the locking device according to the first or second aspect, the crescent lock main body is configured such that the opening and closing member is provided when both the first sensor and the second sensor output a detection signal. Transmission means for outputting the locking signal to the outside.

According to the present invention, the first sensor and the second sensor
Since the lock can be confirmed based on the signals detected by both the sensors, it is possible to surely prevent the lock signal from being transmitted with the empty lock, which is a conventional problem. Further, by transmitting the locking signal to an external receiving device via the transmitting means, it is possible to confirm the locking state of each opening / closing body at a remote place.

According to a fourth aspect of the present invention, in the locking device according to the first or second aspect, the first sensor is attached to a casing of the crescent lock main body, while a first magnet is provided in the engaging member, When the crescent lock main body reaches the engagement position and the first sensor and the first magnet approach each other, a detection signal of the engagement position is output.

According to the present invention, when the opening / closing member closes the opening, the first sensor outputs the detection signal closest to the first magnet, so that the closing of the opening / closing member, which is the first stage of locking confirmation, is performed. The condition is satisfied.

According to a fifth aspect of the present invention, in the locking device according to the first or second aspect, a second sensor and a second magnet are provided on a rotation track of the lock claw in a casing of the crescent lock main body. When the lock claw is rotated to a position where it engages with the hook, the second sensor and the second magnet come close to each other and output a hook position detection signal.

According to the present invention, when the lock claw rotates to the position where it engages with the engagement member, the detection signal is output closest to the second sensor. By satisfying the AND condition, empty locking can be reliably prevented.

According to a sixth aspect of the present invention, in the locking device according to the third aspect, a solar cell panel is disposed on an outer surface of a casing of the crescent lock main body, and driving of the transmitting means is performed by the solar cell panel. The conversion is performed using the converted power.

According to the present invention, since the solar energy is efficiently stored by the solar cell panel disposed on the outer surface of the casing of the crescent lock main body, the stored power is used for driving the transmitting means. As a result, stable locking can be confirmed over a long period of time, and there is no need to replace batteries.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a locking device according to the present invention will be described in detail with reference to the accompanying drawings. This embodiment shows a case where the locking device of the present invention is attached to two sliding windows, FIG. 1 is a perspective view showing an appearance of the locking device according to the present invention, and FIG. 2 constitutes the locking device. Explanatory drawing showing the internal structure and operation of the crescent lock main body, FIG. 3 is a front view of the crescent lock main body, and FIGS. 4 to 6 show locking / unlocking determination conditions based on the open / close state of the window and the rotation position of the lock claw. FIG. 7 is a perspective view when a solar cell panel is provided on the crescent lock main body.

FIG. 1 shows that the locking device 21 is installed in a sliding window 22 composed of two window glasses 22a and 22b. This locking device 21 is provided with one window glass 22.
It is composed of a crescent lock main body 31 disposed on the inner window frame 23 for protecting the outer periphery of a, and an engaging member 32 disposed on the outer window frame 24 for protecting the outer periphery of the other window glass 22b. . The crescent lock main body 31 includes a rectangular parallelepiped casing 33 and a rotary lock 34 provided on an outer surface thereof. The casing 33 includes two types of sensors, a sensor circuit, and a transmission circuit described below. ing. The rotary lock 34 has a semicircular lock claw 39 which engages with the engagement member 32,
An operation lever 40 for performing a rotation operation is provided. On the other hand, the engagement member 32 is formed of a flat metal plate, and has an L-shaped hook portion 4 which is engaged with the lock claw 39 at one end.
5 is provided. The crescent lock main body 31 and the engaging member 32 are respectively composed of the inner window frame 23 and the outer window frame 24.
It is screwed to the side edge.

In this embodiment, as shown in FIG.
The receiving device 61 is located at an arbitrary place away from the locking device 21.
Is installed. The receiving device 61 confirms the locked state by receiving a detection signal from the locking device 21 when the sliding window 22 is locked. Receiving device 6
The first display panel 62 has a locking device 2 attached to the sliding window 22.
The number of LEDs 63 corresponding to 1 is arranged, and when a lock detection signal is transmitted, the corresponding LED 63 is turned on.

Next, the internal structure of the casing 33 of the crescent lock main body 31 will be described with reference to FIG. As described above, the rotary lock 34 is provided on the outer surface of the casing 33, and the pressing plate 36 that rotates together with the rotary lock 34 is attached to the end of the rotary shaft 35 of the rotary lock 34. I have. A coil spring 37 is stretched between one side of the holding plate 36 and the flange 48 of the casing 33 to apply resistance to the rotation of the rotary lock 34 in the locking direction. Further, a reed switch 41 as a first sensor is provided on the back surface of the front side wall 49 of the casing 33.
The reed switch 41 is provided to face the window glass 22b as shown in FIG. 1, and the first magnet 44 provided on the engaging member 32 has the highest position when the window glasses 22a and 22b are completely closed. When approaching, the first magnet 44 is detected and turned on. On the other hand, a second magnet 46 is provided on the lower side of the holding plate 36, and a reed switch 42 as a second sensor is provided near the upper portion of the holding plate 36.
The reed switch 42 is located on the rotation orbit of the lock claw 39, and the rotary lock 34 rotates from the unlocked position shown in FIG. 2A to the locked position shown in FIG. Nail 39
Is closest to the second magnet 46 when the second magnet 46 is engaged with the hook portion 45 of the engagement member 32, and the second magnet 46 is detected and turned on. That is, FIG. 2A shows a state in which the rotary lock 34 is in the unlocking position and the reed switch 42 and the second magnet 46 are in the most distant positional relationship.
(B) shows a state in which the rotary lock 34 has been rotated to a position immediately before hooking on the hook portion 45 of the engagement member 32. In the states (a) and (b), the reed switch 42 remains off. (C) shows a state in which the rotary lock 34 further rotates and engages with the hook portion 45. At this time, the reed switch 42 and the second magnet 46 come closest to each other, and the reed switch 42 detects the magnetism of the second magnet 46. Then turn on. In the present embodiment, the first sensor and the second sensor employ reed switches. However, the present invention is not limited to such reed switches. Can also be used. In addition, a method of detecting with light such as a photo interrupter can be used.

In addition to the reed switches 41 and 42, the reed switch 41,
A sensor circuit 27 for extracting a lock signal from the result of driving and on / off of the sensor 42, a transmission circuit 28 for wirelessly transmitting the lock signal to a receiver 61 located at a remote place, a small speaker, a power supply circuit, A battery (not shown) and the like are incorporated. The sensor circuit 27 includes a circuit for extracting a lock signal from signals detected by the respective reed switches 41 and 42. The transmission circuit 28 includes an oscillation circuit in which an oscillation frequency unique to the crescent lock main body 31 is set, a lead wire serving as an antenna, and the like. As shown in FIG. 3, an LED 38 is provided on the outer surface of the casing 33 near the lower part of the rotary lock 34, and the locking signal processed by the sensor circuit 27 is transmitted to the LED 38.
It is displayed by lighting 38. Locking can also be confirmed by a buzzer sound emitted from a speaker provided inside the casing 33. In this way, the locked state of each window can be confirmed on the spot with eyes and ears. Since the sensor circuit 27 and the transmission circuit 28 can be realized by a known technique, the details are omitted.

The locking signal emitted from the transmission circuit 28 is transmitted to the above-mentioned receiving device 61, and the corresponding LED 63 of the display panel 62 is turned on. As described above, it is possible to confirm which sliding window is locked by turning on the LED 63. However, the identification of each window in the receiving device 61 is performed by receiving the identifier previously allocated to each crescent lock main body. A method of making the device 61 recognize and discriminate or a method of setting the oscillation frequency of the transmission circuit 28 incorporated in each of the crescent lock main bodies 31 to several stages and identifying the same on the receiving device 61 side. Etc. are taken. Also, by providing a memory in the receiving device 61 and temporarily holding the lock signal sent from each crescent lock main body 31,
After all windows have been locked, you can finally check them at hand. Since the signal transmitted to the receiving device 61 is wirelessly transmitted from the crescent lock main body 31, when opening the house when going out or the like, the state of the locked window can be confirmed at the front door. In addition, when sleeping, it can be confirmed in a bedroom or the like.

Next, the locking / unlocking conditions will be described for each case. FIGS. 1 and 4 to 6 show the locking device 21.
Is determined based on the open / closed state of the sliding window 22 and the rotational position of the rotary lock 34. Figure 1
Indicates that the sliding window 22 is open. At this time, since the position of the reed switch 41 of the crescent lock main body 31 and the position of the first magnet 44 of the engaging member 32 are separated in the left-right direction, the reed switch 41 is turned off, regardless of whether the reed switch 42 is on or off. No locking signal is detected. Therefore, unlock determination is made. FIG. 4 shows the sliding window 22.
Indicates a closed state. In this case, reed switch 4
1 overlaps the first magnet 44 and comes closest to it,
The reed switch 41 is turned on. On the other hand, the reed switch 42 in the crescent lock main body 31 is
It is in the state of (a) and is off because it is separated from the second magnet 46. Therefore, also in this case, since both the reed switches 41 and 42 are not turned on, it is determined to be unlocked. FIG. 5 shows a state in which the rotary lock 34 is rotated with the sliding window 22 closed and the lock claw 39 is engaged with the hook portion 45 of the engaging member 32. At this time, as described above, the reed switch 42 is turned on when the reed switch 42 comes closest to the second magnet 46. Therefore, in this case, since both the reed switches 41 and 42 are turned on, the AND condition of the reed switches 41 and 42 is satisfied and the locking is determined.

FIG. 6 shows a so-called empty lock state. Such a situation occurs when the rotary lock 34 is rotated even though the sliding window 22 is not completely closed. In this case, since the rotary lock 34 is rotated, the reed switch 42 is turned on, but the other reed switch 41 cannot be detected because it is separated from the first magnet 44 of the engaging member 32. Turns off. Therefore, the AND condition of the reed switches 41 and 42 is not satisfied, and an unlocking determination is made, so that an empty lock can be prevented.

The locking device 21 is driven by a small battery incorporated in each of the crescent lock main body 31 and the receiving device 61.
7, the solar cell panel 5 is mounted on the outer surface of the casing 33 as shown in FIG.
1 and transmits the detection result of the locked state to the receiving device 61 using the energy obtained by photoelectric conversion.
Can be used as a drive source for turning on. This makes it possible to use the battery semi-permanently without replacing the battery, and to perform stable lock detection confirmation over a long period of time. Also, for the driving of the sensor, since a magnetic open / close type sensor such as a reed switch is used,
Since electricity is supplied only at the moment when it reacts to magnetism such as a magnet,
It can be driven for a long time with a small current consumption,
Batteries can also be used on a yearly basis. In addition, since the solar cell panel 51 can generate sufficient power not only by sunlight but also by indoor fluorescent lamps and incandescent lamps, it can be sufficiently used even on bad weather days and nights.

In the above embodiment, the case where the locking device 21 of the present invention is applied to the sliding window composed of two window glasses has been described. However, the present invention is not limited to such a configuration using two window glasses. The present invention is also applicable to a window including three or more window glasses. For example, in the case of a sliding window composed of three inner, middle and outer windowpanes, a first crescent lock main body is arranged on the inner window frame, and the inner window frame is One side is provided with a first engaging member that engages with the lock claw of the first crescent lock body, and the other side is provided with a second crescent lock body. Furthermore, a second engagement member that engages with the lock claw of the second crescent lock main body may be disposed on the outer window frame. Also, like a sliding window, 1
If one end of a window glass is pivotally supported by an opening such as a wall, and the other end is a window that can be pushed or pulled in and opened,
Placing the crescent tablet body of the present invention on the edge of the opening,
The configuration is such that an engaging member is arranged on the frame of the window glass. In addition, the locking device of the present invention can be used for a sliding door as well as the above-mentioned window, and can be applied to all fittings using a conventional crescent lock.

Further, the shapes and arrangement positions of the crescent lock main body and the engaging member constituting the locking device 21 of the present invention are almost the same as those of the conventional crescent lock.
A conventional window frame or crescent lock manufacturing / assembly line can be used, and it is possible only by adding a step of incorporating a sensor or other circuit components built in the crescent lock main body.
For this reason, it can be mass-produced at once,
The product price can be reduced and a certain quality can be maintained. In addition, a locking device according to the type and standard of the crescent lock can be manufactured.

Although the locking device of the present invention can be used in various ways, in ordinary households, when the user goes out or goes to bed, the state of the locked window is displayed on the receiving device at hand.
It can be grasped at a glance by turning on or off the ED, which is useful for crime prevention. Further, when the locked window is unlocked by a child's prank or forced opening, an unlocking signal is sent to the receiving device 61 at hand, which is useful for security measures. Further, if the locking / unlocking signal generated by the locking device 21 is automatically notified to the security company, further security measures can be realized.

[0031]

As described above, in the locking device of the present invention, the first sensor for detecting the engagement position with the engagement member is provided on the crescent lock main body, so that the closing state of the opening / closing body is provided. Can be confirmed, and by providing the second sensor for detecting the hook position when the lock claw is rotated, it can be confirmed that the lock claw is in the locked position. As described above, since the final lock confirmation is performed by the two independent types of sensors, the lock can be more reliably detected and confirmed. Further, since the first sensor and the second sensor are provided in the main body of the crescent lock, the entire device is compactly arranged, and the detection positions of the individual sensors do not shift. In addition, since the crescent lock main body is integrally formed with the window frame, the arrangement portion is not conspicuous, and the appearance is good.

Further, by providing a wireless transmitting section in the crescent lock main body and displaying a list on the receiving apparatus side, the locked state of each window can be checked at a glance from a remote place.

Further, since the sensor for detecting the open / close position of the window and the rotational position of the lock claw is constituted by a magnetic open / close switch such as a reed switch, the instantaneous current consumption flowing at the time of detection can be saved. Electricity is achieved.

In a company or a factory, by providing a locking device corresponding to a window for each department, it is possible to confirm at a glance a locking leak at the time of final departure. Since the lock can be confirmed for each department as described above, comprehensive lock management of a building having a large number of people can be performed in a short time and reliably.

By arranging the solar cell panel on the crescent lock main body, it is possible to drive the battery semi-permanently without requiring replacement of the battery.

[Brief description of the drawings]

FIG. 1 is a perspective view of a locking device of the present invention.

FIG. 2 is an explanatory view showing the internal structure and operation of a crescent lock main body.

FIG. 3 is an external view of the crescent lock main body of FIG. 2 when viewed from the front.

FIG. 4 is an explanatory diagram showing conditions for determining locking / unlocking of a locking device.

FIG. 5 is an explanatory diagram showing a determination condition of locking / unlocking of the locking device.

FIG. 6 is an explanatory diagram showing conditions for determining locking / unlocking of a locking device.

FIG. 7 is a perspective view when a solar cell panel is mounted on the locking device of FIG. 1;

FIG. 8 is a perspective view of a conventional lock confirmation device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Locking device 22 Sliding window 22a, 22b Window glass 31 Crescent lock main body 32 Engaging member 34 Rotating lock 39 Lock claw 41 Reed switch 42 Reed switch 44 Magnet 45 Hook 46 Magnet 61 Receiver

Claims (6)

[Claims] 1. A locking device for an opening / closing body that opens and closes an opening, comprising: a crescent lock main body having a rotatable lock claw; and an engaging member having a hook engaging with the lock claw. A locking device, comprising: a first sensor for detecting an engagement position with an engagement member; and a second sensor for detecting a hook position when a lock claw is rotated. 2. The opening / closing body is constituted by two sliding windows, and a crescent lock main body is attached to one of the opening / closing bodies.
The locking device according to claim 1, wherein an engagement member is attached to the other opening / closing body. 3. The crescent lock main body unit includes a transmitting unit for outputting a locking signal of the opening / closing body to the outside when both the first sensor and the second sensor output a detection signal. The locking device according to claim 1 or 2, wherein: 4. The first sensor is attached to the casing of the crescent lock main body, while the engaging member is provided with a first magnet, and when the crescent lock main body reaches the engagement position, the first sensor and the first sensor are connected to each other. 2. An engagement position detection signal is output when a magnet approaches.
Or the locking device according to 2. 5. A second sensor and a second magnet are provided on a rotation track of a lock claw in a casing of the crescent lock main body, and when the lock claw is rotated to a position where it engages with a hook. The second sensor and the second magnet approach,
The locking device according to claim 1, wherein the locking device outputs a hook position detection signal. 6. A solar cell panel is provided on an outer surface of a casing of the main body of the crescent lock, and driving of the transmitting means is performed using electric power converted by the solar cell panel. 3. The locking device according to 3.